AZ 2793 then IB 5340 at Barcelona
Alava → Barcelona → Rome
Timetable, Barcelona time
20:15AZ 2793 from Alava at the gatealso V7 3701
12:55IB 5340 to Rome leaves the gatealso LL 5340, LA 5839
16 h 40 apart on the timetable, overnight
IB 5340 leaves 16 h 40 after AZ 2793 arrives on the timetable: more than half a day, so not a connection we count.